Can a 2-Pole Motor Handle 600 Tons? VFD and Motor Question - Expert Opinions

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A 75kW 2-pole motor has been connected to a VFD intended for a 75kW 4-pole motor, raising concerns about its ability to handle a 600-ton load. The torque output for the 2-pole motor is 240Nm, while the 4-pole motor provides 480Nm, indicating the 2-pole may not generate sufficient torque for the application. The user is seeking expert opinions on whether the 2-pole motor can sustain the required load or if a switch back to a 4-pole motor is necessary. Testing the setup is suggested, but the user is unable to do so due to distance. The discussion highlights the importance of matching motor specifications to application requirements for optimal performance.
vsdguy
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Hi all,

I have a 75kW high load Ac drive and a 75kW 4 pole 3 phase motor that is supposed to be used for a winch pulling horizontaly.

The customer connected the Vfd to a 75kW 2 pole 3 phase motor.

Now the question is will this 2 pole motor be capable to develop enough torque to pull a load of 600 Tons?

The Torque Loads for a 2 pole is 240Nm and for a 4 pole its 480Nm.

Do I have to change the motor (back to a 4 pole)?

Just wanted a second and third opinion from you all.


Kind Regards,

vsdguy
 
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If it is already hooked up, couldn't you just try it?
 
I am like a 1000 miles away from the motor and the drive. Customer called that by mistake they received a 2pole instead of a 4 pole. I was just curious if someone ran into a similar experience. The application is for pulling vesels and loads at the worst case scenario 600 tons.
As I mentioned earlier will I have enough torque that will sustain that load.

Any help would be beneficial.

vsdguy
 
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